i have the 06 530i and was wondering what is the best exhaust that i can get out of my engine.
I want the car too be quiet at low rpms and high a bit at higher rpms
Here are my options and if you may kindly offer any advice i would be grateful
1) removing cats and adding magnaflow x pipe
2) removing cats and adding magnaflow sport cats
3) buying borla cat back made for my car
4) buy eisenmann sport exhaust rear muffler
5) adding a magnaflow or borla muffler at rear section muffler with tips
thank you for your advice again
tc
regards